deleted_user: Can you make a make a backup and re-install it without Steam? In certain situations, sure, but largely no... and why is this? Because of the added DRM that Galaxy doesn't have (or more importantly the games on Galaxy). That's the difference...
Ah of course: Instead of looking at the technical background it seems you are using relativization here. There is a defined way of the installation especially under Windows. Talking about others? There is the possibility for creating a backup. But everytime you should look for example at entries within the registry? Making a backup does not always help and it is harmful ignoring that without knowing what configuration is needed or done.
deleted_user: We are talking about a specific area, the door is always open with or without standalone installers. It will always be up to GOG if they walk through that door or not.
Again: No. With the installer downloaded you can decide when, where and how you want to install. That's the business of the user and not of any client deciding! If you choose that for yourself? Okay, but let everybody else having a choice and stop trying to do a snow job for this "optional" client.
deleted_user: That's nonsense, game clients are delivery methods nothing more used for getting games file from point A to point B. Galaxy is essentially a web browser, and it even it uses the same framework as Google Chrome.
DRM is added to clients, not an essential requirement of being a client. Stop looking at Steam and thinking it's the definition of how clients are done and thinking it's own faults are Galaxy's inherited faults. There not.
I said people wouldn't like it, and I can even see why... but that doesn't mean what I said isn't true and trying to call it something it's not also isn't true.
If you download the files via a standalone installer or via Galaxy, the files you get are exactly the same and DRM free. The delivery method doesn't change that. As long as GOG provides ways to keep games usable without Galaxy then it's just a convenient (for majority of people) as It still allows protection of games in the future possible death of GOG.
There is a difference, because there is no choice furthermore and this delivery-method is just another snow job for DRM. Now you only need the browser for a download, that's it. The rest? Your own decision without any third-party software. And of course: You have a choice. And it is interesting: Nonsense? Oh yes, every different opinion than yours is that?
It's always the same: Instead having a harsher definition, people tend to relativize more and more. Galaxy may have a browser-component, yes. But then within a sudden: It's a complete webbrowser? Oh and it's just another delivery-method, so GOG can define that as their one and only. And then what? What is the next line crossing? That's the problem: No harsh definition and at the end the user is the loser, always. With this very wide definitions you can also define any Application-Store as package-repository. In the end? A complete closed system like modern smartphone can be defined as "free" and "open". Indeed: A package-repository is included, but it's not the only component. Enough said: Go on with relativizations. :) When GOG uses Galaxy, I'll stop using GOG. That's my choice, because having principles is not a bad idea! Giving them up because everyone else is doing that ... also a choice. ;-)